Light travels frkm air (n=1.00) i to water (n1.33). if the angle of refraction is 30°, what is the angle of refraction

If the angle of refraction is 30°, then the angle of refraction is also 30°, or very close to it.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

ya te mando la respuesta